CN107322239B - A kind of processing method of one-way clutch outer ring - Google Patents
A kind of processing method of one-way clutch outer ring Download PDFInfo
- Publication number
- CN107322239B CN107322239B CN201710522411.0A CN201710522411A CN107322239B CN 107322239 B CN107322239 B CN 107322239B CN 201710522411 A CN201710522411 A CN 201710522411A CN 107322239 B CN107322239 B CN 107322239B
- Authority
- CN
- China
- Prior art keywords
- processing
- vehicle
- face
- way clutch
- outer circle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of processing methods of one-way clutch outer ring, and described method includes following steps: (1) stocking up；(2) Vehicle Processing；(3) Milling Machining；(4) pincers processing；(5) broaching is processed；(6) pincers processing；(7) thermo-chemical treatment；(8) it is heat-treated；(9) Vehicle Processing；(10) pincers processing；(11) it is heat-treated；(12) sandblasting；(13) mill processing；(14) mill processing；(15) mill processing；(16) pincers processing；(17) it detects a flaw.The advantages of machine tool of the present invention is effectively connected with numerically-controlled machine tool, gives full play to all kinds of lathes, and it is inserted into reasonable heat treatment and auxiliary process, keep its processing flow more reasonable, operating method is easy, and workpiece quality is easily controllable.The surface roughness of off-centre operation cambered surface reaches Ra0.4, does not find micro-crack, and process time shortens 17% compared with original method, and processing cost reduces 6%, this processing technology can wide popularization and application.
Description
Technical field
The invention belongs to technical fields of mechanical processing, and in particular to a kind of eccentric arc processing of one-way clutch outer ring and
Heat treatment.
Background technique
One-way clutch is made of parts such as inner ring, outer ring, roller, springs, is a crucial group in fluid torque-converter
Part, roller roll work on the arc surface of inner ring and outer ring, and inner ring is made to separate or couple with outer ring.One-way clutch outer ring
Eccentric arc requires shape accurate, dimensional accuracy IT6, surface roughness Ra 0.4,60~65HRC of carburizing and quenching.It is main at present
Processing method is:
1. forging-normalizing+tempering-vehicle (vehicle both ends of the surface and inside and outside circle)-mill (two planes of corase grinding)-wire cutting (is slightly cut
Eccentric arc) (carburizing is quenched for-wire cutting (half essence cuts eccentric arc)-heat treatment for-surface treatment (copper facing or applying anti-carburizer)
60~65HRC of fire)-surface treatment (removal layers of copper or anti-carburizer)-mill (two planes of fine grinding)-mill (fine grinding inside and outside circle)-
Grind (special purpose machine tool fine grinding eccentric arc)-flaw detection (whether there are cracks for magnetic examination).
- normalizing+tempering-vehicle (vehicle both ends of the surface and inside and outside circle)-mill (two planes of corase grinding)-draws that (hilted broadsword is rough 2. forging
Cut eccentric grove)-drawing (half finish draw of hilted broadsword cuts eccentric grove)-surface treatment (copper facing or applying anti-carburizer)-(half finish draw is cut partially for drawing
Heart circular arc)-(fine grinding two is flat for mill for heat treatment (60~65HRC of carburizing and quenching)-surface treatment (removal layers of copper or anti-carburizer)-
Face)-mill (fine grinding inside and outside circle)-mill (special purpose machine tool fine grinding eccentric arc)-flaw detection (whether there are cracks for magnetic examination).
Method 1 cuts eccentric arc using twice wire cutting, and processing efficiency is low；The hilted broadsword broaching eccentric arc of method 2, by
It is big in broaching amount, broaching tool quick abrasion, cost of charp tool height.In two kinds of processing methods, the finishing of eccentric arc all needs special purpose grinder,
And the one-way clutch outer ring processed with two kinds of processing methods is in use for some time, and micro-crack occurs in eccentric arc,
There is aliquation to fall off when serious.Existing processing method exists following insufficient:
(1) twice wire cutting, production efficiency is low, and the production cycle is long.The rough broaching amount cut is big, broaching tool quick abrasion, cutter
It is at high cost.
(2) surface roughness of off-centre operation cambered surface can only achieve Ra0.8.
(3) when magnetic triage is looked into, it is found that 5% workpiece has grinding crack in off-centre operation cambered surface.One-way clutch outer ring exists
After a period of use, there is micro-crack in off-centre operation cambered surface, has aliquation to fall off when serious, influences the performance of product.
Therefore, the processing of one-way clutch outer ring needs a kind of stabilization, economy, quick processing method, to meet reality
The demand of production.
Summary of the invention
In order to solve the above technical problems, being criticized the present invention provides a kind of processing method of one-way clutch outer ring with meeting
The requirement of production.
The invention is realized in this way it the following steps are included:
(1) it stocks up: selecting carburizing alloy structure steel forgings；
(2) Vehicle Processing: processing in general horizontal lathe, clamps outer circle with scroll chuck, face work, inner hole, outer circle are stayed remaining
Amount；
(3) Milling Machining: processing in vertical machining centre, positioned with outer circle and an end face, mills eccentric grove, and groove width size is to wanting
It asks, eccentric arc made allowance；
(4) pincers processing: flash removed is removed；
(5) broaching is processed: being processed in vertical hydraulic lathe, is extremely required with the root fillet of push broach broaching eccentric grove；
(6) pincers processing: flash removed is removed；
(7) thermo-chemical treatment: case-carbonizing (does not quench)；
(8) it is heat-treated: full annealing；
(9) Vehicle Processing: processing in horizontal NC lathe, clamps outer circle, face work, inner hole, outer circle, inner hole with scroll chuck
Vehicle extremely requires, end face, outer circle made allowance；
(10) pincers processing: flash removed is removed；
(11) it is heat-treated: quenching+tempering；
(12) sandblasting: removing oxide layer is removed；
(13) mill processing: processing in surface grinding machine, plain grinding both ends of the surface to requirement；
(14) it mill processing: processes in cylindrical grinder, is positioned with an end face and eccentric arc, cylindrical grinding extremely requires；
(15) mill processing: processing in vertical numerical control grinding machine, is positioned with the one side of an end face, outer circle and eccentric grove, mill is inclined
Heart circular arc；
(16) pincers processing: flash removed is removed；
(17) it detects a flaw: magnetic crack detection.
Step (1) stock, forging are forged by QJ500A-1998, normalized condition delivery.
Step (2) Vehicle Processing, manufacturing procedure figure are shown in Fig. 2, face work size LtcJs13, hole size Φ Dic, outer circle
Size Φ DocH13 third gear process dimension=corresponding final size+2 × [carburized layer thickness+
(2.5mm~3.2mm)] or -2 × [carburized layer thickness+(2.5mm~3.2mm)] of corresponding final size.When outer
When circle, both ends of the surface not carburizing :+2 × [carburized layer thickness+(2.5mm~3.2mm)] of corresponding final size；When inner hole not carburizing
When: -2 × [carburized layer thickness+(2.5mm~3.2mm)] of corresponding final size.
Step (3) Milling Machining, manufacturing procedure figure are shown in Fig. 2, mill eccentric grove, groove width size LW1、LW2, fillet RSC, eccentric
Circular arc Rbcjs9.Groove width size LW1、LW2It is final size.Fillet RSCIt is by fillet RS1(Fig. 2) and craftsmanship are determining, but cannot
Influence the carburized (case) depth of eccentric arc.Eccentric arc RbcJs9=eccentric arc RbJs6- (surplus 0.3mm~0.6mm), it is public
Poor grade is js9.
Fig. 3, fillet R at broaching processing two are shown in step (5) the broaching processingS1、RS2, fillet RS1Allow to connect with slot side
Knife, machined trace are not more than 0.2mm.
Step (7) carburizing determines carburizing temperature, time, depth of penetration according to workpiece material, structure, carburizing depth
For eccentric arc surplus+design requirement carburized (case) depth.
Step (8) full annealing, according to workpiece material, structure determination full annealing temperature, time.Primarily to
Crystal grain is refined, tissue defects is eliminated, eliminates residual stress, reduces hardness, is prepared for following process and quenching.
Step (9) Vehicle Processing is shown in that Fig. 1, vehicle both ends of the surface, inner hole, outer circle, face size vehicle are LtJs7+ (0.5mm~
0.7mm), hole size Φ DiVehicle to requirement, excircle dimension vehicle is Φ DoH7+ (0.3mm~0.4mm).
The step (11) heat treatment, quenching, tempering be determined according to workpiece material, structure, hardness requirement heating temperature,
Time, cooling medium.
Step (12) sandblasting removes removing oxide layer to piece surface sandblasting, it helps Transformation of Retained Austenite is horse
Family name's body.
Fig. 1, vertical numerical control grinding machine mill processing eccentric arc R are shown in step (15) the mill processingbJs6 is extremely required.It is ground sand
The major diameter of wheel is according to the root fillet R of eccentric groveS1It determines, it is ensured that eccentric arc can be ground.
The step (17) flaw detection, it is main check off-centre operation cambered surface whether there is or not grinding crack, other faces whether there is or not hardening flaw and
Other crackles.
The beneficial effects of the present invention are:
Compared with prior art, the advantages of machine tool is effectively connected with numerically-controlled machine tool, gives full play to all kinds of lathes, and insert
Enter reasonable heat treatment and auxiliary process, keep its processing flow more reasonable, operating method is easy, and workpiece quality is easily controllable.
The one-way clutch outer ring processed using processing method of the present invention, the surface roughness of off-centre operation cambered surface reach Ra0.4,
Off-centre operation cambered surface does not find micro-crack, and process time shortens 17% compared with original method, and processing cost reduces 6%, this adds
Work technology can wide popularization and application.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present invention one-way clutch outer ring to be processed；
Fig. 2 is the schematic diagram of roughing process in the present invention；
Fig. 3 is the schematic diagram of roughing process in the present invention.
Specific embodiment
1~3 technical solution of the present invention is further described with reference to the accompanying drawing, but the range protected is not limited to institute
It states.
The embodiment of the present invention, specific process steps are as follows:
(1) it stocks up: selection carburizing structural alloy steel 20CrMnTi-GB/T3077-1999, and forged by QJ500A-1998
And heat treatment (normalizing+tempering).
(2) it Vehicle Processing: is processed in general horizontal lathe, manufacturing procedure figure is shown in Fig. 2:
A) the tight blank outer circle of hard claw clip of scroll chuck is used, clamping while corrects end face.One end face of vehicle, end face vehicle go out i.e.
Can, interior pore size Φ Dic, turning size Φ DocH13, the half of outer circle axial length vehicle about overall thickness.
B) with the soft claw clip of scroll chuck tightly turning, and it is close to face work.Face work size LtcJs13, turning
Size Φ DocH13, outer circle allow that knife is inscribed in tolerance h13 range.
(3) Milling Machining: processing in vertical machining centre, and manufacturing procedure figure is shown in Fig. 2, with outer circle and end face positioning (bearing
End face needs to reserve withdrawing distance), it is compressed with pressing plate.Mill eccentric grove, groove width size LW1、LW2, fillet RSC, eccentric arc
Rbcjs9。
(4) pincers processing: removal Milling Machining burr.
(5) broaching is processed: being processed in vertical hydraulic lathe, Fig. 3 is seen, with the bias for drawing knife part alignment pieces of push broach
Slot, the root fillet R for the broaching eccentric grove that pressurizesS1、RS2, fillet RS1Allow to connect knife with slot side, machined trace is not more than 0.2mm.
(6) pincers processing: removal broaching machined burrs.
(7) thermo-chemical treatment: case-carbonizing (does not quench), carburized (case) depth 1.4mm~1.8mm.
(8) it is heat-treated: full annealing.
(9) it Vehicle Processing: is processed in horizontal NC lathe, sees Fig. 1:
A) inner hole is clamped with the soft pawl of scroll chuck is counter, and is close to end face.One end face of vehicle, end face vehicle go out, and guarantee the other end
There are machining allowance, turning in face, and excircle dimension vehicle is Φ Doh7+ (0.3mm~0.4mm)；
B) with the soft claw clip of scroll chuck tightly turning, and it is close to face work.Face work, face size vehicle are
Ltjs7+ (0.5mm~0.7mm), boring, hole size Φ Di vehicle to requirement.
(10) pincers processing: removal Vehicle Processing burr.
(11) it is heat-treated: quenching+tempering, 60~65HRC of hardness of off-centre operation cambered surface, 30~45HRC of rest part.
(12) sandblasting: to piece surface sandblasting, removing removing oxide layer, and facilitating Transformation of Retained Austenite is martensite.
(13) it mill processing: is processed in surface grinding machine, sees Fig. 1:
A) workbench inhales an end face, grinds an end face, end face is ground, and guarantees that there is machining allowance in other end；
B) workbench inhales face grinding, grinds other end, guarantees thickness Ltjs7.
(14) mill processing: processing in cylindrical grinder, see Fig. 1, and with an end face and eccentric arc positioning, (bearing end face needs to stay
Withdrawing distance out), cylindrical grinding size Φ Doh7 to requirement.
(15) mill processing: processing in vertical numerical control grinding machine, see Fig. 1, is positioned with the one side of an end face, outer circle and eccentric grove
(bearing end face is in eccentric arc RbWithdrawing distance is reserved within the scope of js6), grind eccentric arc Rbjs6。
(16) pincers processing: flash removed is removed.
(17) detect a flaw: magnetic crack detection, it is main check off-centre operation cambered surface whether there is or not grinding crack, other faces whether there is or not hardening flaw and
Other crackles.
The stock of the step (1) wants demander's signature confirmation.
Step (2) Vehicle Processing: process dimension=corresponding final size+(or -) 2 × [carburized layer thickness+
(2.5mm~3.2mm)].When outer circle, both ends of the surface not carburizing: corresponding final size+2 × [carburized layer thickness+(2.5mm~
3.2mm)]；When inner hole not carburizing: -2 × [carburized layer thickness+(2.5mm~3.2mm)] of corresponding final size.
Step (3) Milling Machining: groove width size LW1、LW2It is final size.Fillet RSCIt is by fillet RS1(see Fig. 1) and
Craftsmanship determines, but cannot influence the carburized (case) depth of eccentric arc.Eccentric arc RbcJs9=eccentric arc RbJs6- (surplus
0.3mm~0.6mm), grade of tolerance js9.
The step (7) pit carburizing furnace, 920 DEG C ± 10 DEG C of carburizing temperature, carburizing medium: the drop of methanol 60~80/
Min, 120~140 drops of kerosene/min, carburizing time about 6.5h (the specific time makees sample and determines), are put into melt pit tank after carburizing
It is cooling.
870 DEG C ± 10 DEG C of the heating temperature of step (8) full annealing, soaking time is according to charging mode, batch
Determined with the effective thickness of workpiece, be cooled in furnace 150 DEG C come out of the stove it is air-cooled.Primarily to refinement crystal grain, eliminate tissue defects,
It eliminates residual stress, reduce hardness, prepare for following process and quenching.
820 DEG C ± 10 DEG C of step (11) quenching temperature, soaking time is according to charging mode, batch and workpiece
Effective thickness determine, oil it is cold, 20 DEG C~60 DEG C of oil temperature.160 DEG C ± 10 DEG C of tempering heating-up temperature, soaking time is according to shove charge side
The effective thickness of formula, batch and workpiece determines, air-cooled.
The step (15) grinds the major diameter of abrasive grinding wheel in processing according to the root fillet R of eccentric groveS1It determines, it is ensured that can grind
Eccentric arc out.
Claims (7)
1. a kind of processing method of one-way clutch outer ring, which comprises the following steps:
(1) it stocks up: selecting carburizing alloy structure steel forgings；
(2) Vehicle Processing: processing in general horizontal lathe, clamps outer circle, face work, inner hole, outer circle, made allowance with scroll chuck；
(3) Milling Machining: processing in vertical machining centre, positioned with outer circle and an end face, mills eccentric grove, and groove width size extremely requires,
Eccentric arc made allowance；
(4) pincers processing: flash removed is removed；
(5) broaching is processed: being processed in vertical hydraulic lathe, is extremely required with the root fillet of push broach broaching eccentric grove；
(6) pincers processing: flash removed is removed；
(7) thermo-chemical treatment: case-carbonizing；
(8) it is heat-treated: full annealing；
(9) Vehicle Processing: processing in horizontal NC lathe, clamps outer circle with scroll chuck, face work, inner hole, outer circle, inner hole vehicle is extremely
It is required that end face, outer circle made allowance；
(10) pincers processing: flash removed is removed；
(11) it is heat-treated: quenching+tempering；
(12) sandblasting: removing oxide layer is removed；
(13) mill processing: processing in surface grinding machine, plain grinding both ends of the surface to requirement；
(14) it mill processing: processes in cylindrical grinder, is positioned with an end face and eccentric arc, cylindrical grinding extremely requires；
(15) mill processing: processing in vertical numerical control grinding machine, is positioned with the one side of an end face, outer circle and eccentric grove, grinds off-centre operation
Arc；
(16) pincers processing: flash removed is removed；
(17) it detects a flaw: magnetic crack detection.
2. a kind of processing method of one-way clutch outer ring according to claim 1, it is characterised in that: the step (2)
Vehicle Processing, face work, inner hole, outer circle process dimension=corresponding final size+2 × [carburized layer thickness+(2.5mm~
3.2mm)] or corresponding -2 × [carburized layer thickness+(2.5mm~3.2mm)] of final size.
3. a kind of processing method of one-way clutch outer ring according to claim 1, it is characterised in that: the step (3)
Milling Machining, eccentric arc RbcJs9=eccentric arc RbJs6- (surplus 0.3mm~0.6mm), grade of tolerance js9.
4. a kind of processing method of one-way clutch outer ring according to claim 1, it is characterised in that: the step (7)
With pit carburizing furnace, 920 DEG C ± 10 DEG C of carburizing temperature, carburizing medium: 60~80 drops of methanol/min, the drop of kerosene 120~140/
Min is put into melt pit tank cooling after carburizing.
5. a kind of processing method of one-way clutch outer ring according to claim 1, it is characterised in that: the step (8)
870 DEG C ± 10 DEG C of the heating temperature of full annealing, be cooled in furnace 150 DEG C come out of the stove it is air-cooled.
6. a kind of processing method of one-way clutch outer ring according to claim 1, it is characterised in that: the step (9)
Vehicle both ends of the surface, inner hole, outer circle, face size vehicle are LtJs7+ (0.5mm~0.7mm), hole size Φ DiVehicle extremely requires, outer circle
Size vehicle is Φ DoH7+ (0.3mm~0.4mm).
7. a kind of processing method of one-way clutch outer ring according to claim 1, it is characterised in that: the step (11)
820 DEG C ± 10 DEG C of quenching temperature, oil is cold, and 20 DEG C~60 DEG C of oil temperature；It is 160 DEG C ± 10 DEG C of tempering heating-up temperature, air-cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710522411.0A CN107322239B (en) | 2017-06-30 | 2017-06-30 | A kind of processing method of one-way clutch outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710522411.0A CN107322239B (en) | 2017-06-30 | 2017-06-30 | A kind of processing method of one-way clutch outer ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107322239A CN107322239A (en) | 2017-11-07 |
| CN107322239B true CN107322239B (en) | 2019-01-04 |
Family
ID=60199363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710522411.0A Active CN107322239B (en) | 2017-06-30 | 2017-06-30 | A kind of processing method of one-way clutch outer ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107322239B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962353A (en) * | 2017-11-23 | 2018-04-27 | 江苏金瑞机械制造有限公司 | A kind of manufacture craft applied to inertia rings |
| CN109202383B (en) * | 2018-10-18 | 2020-07-21 | 贵州凯星液力传动机械有限公司 | Manufacturing method of serialized connecting flange |
| CN111283389B (en) * | 2020-03-17 | 2021-10-22 | 无锡鹰贝精密液压有限公司 | End face grinding process for wear-resisting disc of hydraulic motor |
| CN114260659B (en) * | 2022-01-14 | 2022-11-29 | 河北华北柴油机有限责任公司 | Machining method for large-eccentricity porous flying block iron casting |
| CN115488594B (en) * | 2022-10-28 | 2024-09-03 | 贵州航天凯星智能传动有限公司 | Machining method of eccentric oil pump shell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0425321A (en) * | 1990-05-18 | 1992-01-29 | Nissan Motor Co Ltd | Clutch gear manufacturing method |
| CN101020285A (en) * | 2007-02-11 | 2007-08-22 | 陈勇 | Stretching process of clutch casing |
| CN102069237A (en) * | 2010-12-17 | 2011-05-25 | 泰州市里华机械有限公司 | Push-broaching molding process of gear part of ring gear |
| CN103111689A (en) * | 2013-02-21 | 2013-05-22 | 綦江永跃齿轮有限公司 | Forming and milling process of automotive differential clutch engagement sleeve |
-
2017
- 2017-06-30 CN CN201710522411.0A patent/CN107322239B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0425321A (en) * | 1990-05-18 | 1992-01-29 | Nissan Motor Co Ltd | Clutch gear manufacturing method |
| CN101020285A (en) * | 2007-02-11 | 2007-08-22 | 陈勇 | Stretching process of clutch casing |
| CN102069237A (en) * | 2010-12-17 | 2011-05-25 | 泰州市里华机械有限公司 | Push-broaching molding process of gear part of ring gear |
| CN103111689A (en) * | 2013-02-21 | 2013-05-22 | 綦江永跃齿轮有限公司 | Forming and milling process of automotive differential clutch engagement sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107322239A (en) | 2017-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107322239B (en) | A kind of processing method of one-way clutch outer ring | |
| CN102152075B (en) | Method for processing bearing pedestal of continuous casting machine | |
| CN106624671A (en) | Processing technology for shaft parts | |
| CN106246705A (en) | A kind of electric motor of automobile rotating shaft and processing method thereof | |
| CN104227345A (en) | Processing method for high-precision thin step shaft and grinding chuck for processing method | |
| CN111468905A (en) | Tooth broaching process for thin-wall internal spline shaft | |
| CN109175924A (en) | A kind of processing technology of three actives roller gear | |
| CN111992999A (en) | Automobile precision stepped shaft cylindrical grinding process | |
| CN112338444A (en) | Machining process of heavy-duty spline half shaft | |
| CN203847661U (en) | Integrated bevel gear | |
| CN105750563A (en) | Method for enhancing hard turning circularity of thin-wall annular parts | |
| CN115922242A (en) | Method for processing inner ring and outer ring of self-aligning roller bearing | |
| CN106736321A (en) | A kind of 20Cr cam cuttings technique | |
| US7270504B2 (en) | Cutting tool for metal working as well as method in the production of cutting tools | |
| CN109731916A (en) | Rolling mill bearing and its manufacturing method | |
| EP1158194A2 (en) | Process for forming steel roller bearings | |
| CN106112418B (en) | The processing technology of PH stainless steel pump shaft | |
| CN114473392B (en) | Sliding bearing processing method | |
| CN115213641B (en) | Method for machining transmission input shaft | |
| CN113199211B (en) | Processing technology of sleeve for chain | |
| CN108443306A (en) | A kind of electric motor of automobile shaft and its processing method | |
| US20090019697A1 (en) | Method for low lot gear manufacturing | |
| CN107803632A (en) | The processing technology of PH stainless steel pump shaft | |
| CN114193094A (en) | Machining process of ultrahigh precision main shaft | |
| CN111993000A (en) | Machining method for symmetrical stepped gear shaft of automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |